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　　廢水類型：食品加工廢水

　　廢水特性：食(shi)(shi)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)包(bao)括谷類(lei)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)、飲(yin)料(liao)生產(chan)廢(fei)水(shui)(shui)(shui)(shui)、水(shui)(shui)(shui)(shui)產(chan)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)、肉類(lei)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)及(ji)釀酒工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)廢(fei)水(shui)(shui)(shui)(shui)等。由于大多(duo)(duo)數的(de)(de)食(shi)(shi)品(pin)(pin)工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)在(zai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)過程中需要(yao)大量用水(shui)(shui)(shui)(shui),所以食(shi)(shi)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)排(pai)(pai)(pai)放的(de)(de)廢(fei)水(shui)(shui)(shui)(shui)量很大,是(shi)我國水(shui)(shui)(shui)(shui)源(yuan)污染大戶(hu)之(zhi)一,食(shi)(shi)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)COD排(pai)(pai)(pai)放量占工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)廢(fei)水(shui)(shui)(shui)(shui)COD總排(pai)(pai)(pai)放量的(de)(de)110/,居輕(qing)工(gong)(gong)(gong)(gong)(gong)業(ye)(ye)行業(ye)(ye)第二位(wei)。食(shi)(shi)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)的(de)(de)主要(yao)原材料(liao)是(shi)農、漁、牧(mu)、林業(ye)(ye)產(chan)品(pin)(pin),來源(yuan)十(shi)分廣泛(fan),且制品(pin)(pin)種類(lei)繁多(duo)(duo),所以其排(pai)(pai)(pai)出的(de)(de)食(shi)(shi)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)水(shui)(shui)(shui)(shui)質(zhi)成分復(fu)雜,水(shui)(shui)(shui)(shui)質(zhi)惡劣(lie),若直接排(pai)(pai)(pai)人水(shui)(shui)(shui)(shui)體,對環(huan)境(jing)(jing)的(de)(de)危害(hai)十(shi)分嚴重。因此,處(chu)理好食(shi)(shi)品(pin)(pin)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)廢(fei)水(shui)(shui)(shui)(shui)對于環(huan)境(jing)(jing)的(de)(de)保護和(he)人類(lei)的(de)(de)健(jian)康具有重要(yao)意義(yi)。

　　處理工藝說明：食(shi)品加工廢(fei)水(shui)的處(chu)理(li)(li)(li)(li)按作用原理(li)(li)(li)(li)可分為:物(wu)(wu)理(li)(li)(li)(li)處(chu)理(li)(li)(li)(li)法(fa)(fa)、化學(xue)(xue)處(chu)理(li)(li)(li)(li)法(fa)(fa)和生(sheng)物(wu)(wu)處(chu)理(li)(li)(li)(li)法(fa)(fa)。每(mei)一種(zhong)方法(fa)(fa)又(you)包(bao)括(kuo)多(duo)種(zhong)工藝(yi)(yi)。物(wu)(wu)理(li)(li)(li)(li)處(chu)理(li)(li)(li)(li)法(fa)(fa)有篩濾、撇(pie)除、調(diao)節、沉淀、氣浮(fu)、過濾、微濾、離(li)心分離(li)等(deng),前五種(zhong)工藝(yi)(yi)主要用于(yu)預處(chu)理(li)(li)(li)(li)或一級處(chu)理(li)(li)(li)(li),后三種(zhong)工藝(yi)(yi)主要用于(yu)深度處(chu)理(li)(li)(li)(li);化學(xue)(xue)處(chu)理(li)(li)(li)(li)法(fa)(fa)有中和法(fa)(fa)、混(hun)凝法(fa)(fa)、電解法(fa)(fa)、氧化還原法(fa)(fa)、離(li)子交換法(fa)(fa)、膜(mo)分離(li)法(fa)(fa)等(deng);生(sheng)物(wu)(wu)處(chu)理(li)(li)(li)(li)工藝(yi)(yi)包(bao)括(kuo)好氧生(sheng)物(wu)(wu)處(chu)理(li)(li)(li)(li)工藝(yi)(yi)、厭氧生(sheng)物(wu)(wu)處(chu)理(li)(li)(li)(li)工藝(yi)(yi)、穩(wen)定塘工藝(yi)(yi)、土地處(chu)理(li)(li)(li)(li)工藝(yi)(yi)和由(you)上述工藝(yi)(yi)相(xiang)結合(he)而(er)成的綜合(he)生(sheng)物(wu)(wu)處(chu)理(li)(li)(li)(li)工藝(yi)(yi)。而(er)根據(ju)食(shi)品加工廢(fei)水(shui)BOD、COD值高等(deng)特點,國內外廣泛采用的方法(fa)(fa)是生(sheng)物(wu)(wu)處(chu)理(li)(li)(li)(li)法(fa)(fa)。